Melania, Ivanka and Michelle Obama looked fabulous. Hilary Clinton looked very elegant in the white/cream suit, but a bit dressier version would raise the outfit from very nice and elegant to fab for me.
Kellyanne Conway looked ridiculous in a marching band uniform. Sorry if it sound harsh, but that's how I see her outfit.
*PS: I looked at some more photos of Kallyanne Conway from inauguration and what really bothers me about her outfit are the red gloves and the hat. That much contrast makes the outfit look more like a costume in my opinion. It would look much better with a different colour and style of hat (blue or white, less helmet like), and blue gloves.